Field experiments were conducted at Agricultural College and Research Institute, Madurai, Tamil nadu, India, during Kharif and Rabi, 2007-2008 to study the effect of agronomic management practices on aerobic rice. The experiments were laid out in a split-plot design with three replications. The main plots consisted of three varieties (V₁-PMK 3, V₂ - ASD 16 and V₃- ADT 43) and three levels of nitrogen (N₁ - 125 kg N ha^-1, N₂ -150 kg N ha^-1 and N₃ - 175 kg N ha^-1). The sub plots includes three nitrogen splits viz., S 1 - 3 splits (three equal splits at 15 DAS, tillering and panicle initiation), S 2 - 4 splits (four equal splits at 15 DAS, tillering, panicle initiation and heading) and S3 - 5 splits (five equal splits at 15 DAS, initial tillering, active tillering, panicle initiation and heading). The growth parameters like plant height (84.28 cm), tiller production per plant (12.71), Dry Matter Production (8232 kg ha^-1), LAI (3.91) and SPAD N values (34.94) were superior for variety PMK 3 (V 1). Yield parameters (panicles m-2 (318), panicle weight (3.2g), number of grains panicle^-1 (118) filled grains panicle^-1 (112)) were also significantly higher with PMK 3 (V1). Application of higher dose of nitrogen at 175 kg N ha^-1 (N₃) enhanced the growth parameters, yield parameters and yield. However, these parameters were comparable at 150 kg N ha^-1(N₂). All the growth parameters, yield parameters and yield were significantly higher with five split application of N (S₃). The four split application of N (S₂) was on par with five splits (S₃) in growth parameters, growth analytical and yield parameters and yield of aerobic rice. Based on the results, it is inferred that cultivation of rice variety PMK3 with the application of 150 kg N ha^-1 in four splits will be the best agronomic management practice for realizing higher yield in aerobic rice cultivation.